Jayco Octane T26Y Winter Camping

I have a 24Z, and have camped in the winter in CA, but I'm sure your country gets alot colder, so take this with a grain of salt. Your water tanks and plumbing are all exposed, along with the grey and black drain valves, so I would think heat tape or run dry. I insulated the sky lights with the pillows, cut foam for the side air vents, and the biggest thing, if you have the generator, is to pull the front plywood off the bed and insulate around the tin generator box. That really helps for the cold wicking in under your bed, plus quiets the gen noise 75%. I used the 1" foam board and construction adhesive, did all 3 sides and the top. The rest is typical RV stuff, running the heater will kill your batteries overnight, I would think catalytic or Mr. Buddy would work better. And if you can find them, the snap in plastic plugs for your weep holes on the windows will help with cold air infiltration, but conversly, causes more condensation. We have started using the humidity air dryer, and it helps. JMO